107 struct scsi_device {  struct
108 	struct Scsi_Host *host;
109 	struct request_queue *request_queue;
112 	struct list_head    siblings;   /* list of all devices on this host */
113 	struct list_head    same_target_siblings; /* just the devices sharing same target id */
115 	struct sbitmap budget_map;
116 	atomic_t device_blocked;	/* Device returned QUEUE_FULL. */
118 	atomic_t restarts;
119 	spinlock_t list_lock;
120 	struct list_head starved_entry;
121 	unsigned short queue_depth;	/* How deep of a queue we want */
122 	unsigned short max_queue_depth;	/* max queue depth */
123 	unsigned short last_queue_full_depth; /* These two are used by */
124 	unsigned short last_queue_full_count; /* scsi_track_queue_full() */
125 	unsigned long last_queue_full_time;	/* last queue full time */
126 	unsigned long queue_ramp_up_period;	/* ramp up period in jiffies */
129 	unsigned long last_queue_ramp_up;	/* last queue ramp up time */
131 	unsigned int id, channel;
132 	u64 lun;
133 	unsigned int manufacturer;	/* Manufacturer of device, for using 
135 	unsigned sector_size;	/* size in bytes */
137 	void *hostdata;		/* available to low-level driver */
138 	unsigned char type;
139 	char scsi_level;
140 	char inq_periph_qual;	/* PQ from INQUIRY data */	
141 	struct mutex inquiry_mutex;
142 	unsigned char inquiry_len;	/* valid bytes in 'inquiry' */
143 	unsigned char * inquiry;	/* INQUIRY response data */
144 	const char * vendor;		/* [back_compat] point into 'inquiry' ... */
145 	const char * model;		/* ... after scan; point to static string */
146 	const char * rev;		/* ... "nullnullnullnull" before scan */
149 	struct scsi_vpd __rcu *vpd_pg0;
150 	struct scsi_vpd __rcu *vpd_pg83;
151 	struct scsi_vpd __rcu *vpd_pg80;
152 	struct scsi_vpd __rcu *vpd_pg89;
153 	struct scsi_vpd __rcu *vpd_pgb0;
154 	struct scsi_vpd __rcu *vpd_pgb1;
155 	struct scsi_vpd __rcu *vpd_pgb2;
157 	struct scsi_target      *sdev_target;
159 	blist_flags_t		sdev_bflags; /* black/white flags as also found in
163 	unsigned int eh_timeout; /* Error handling timeout */
170 	bool manage_system_start_stop;
176 	bool manage_runtime_start_stop;
182 	bool manage_shutdown;
184 	unsigned removable:1;
185 	unsigned changed:1;	/* Data invalid due to media change */
186 	unsigned busy:1;	/* Used to prevent races */
187 	unsigned lockable:1;	/* Able to prevent media removal */
188 	unsigned locked:1;      /* Media removal disabled */
189 	unsigned borken:1;	/* Tell the Seagate driver to be 
191 	unsigned disconnect:1;	/* can disconnect */
192 	unsigned soft_reset:1;	/* Uses soft reset option */
193 	unsigned sdtr:1;	/* Device supports SDTR messages */
194 	unsigned wdtr:1;	/* Device supports WDTR messages */
195 	unsigned ppr:1;		/* Device supports PPR messages */
196 	unsigned tagged_supported:1;	/* Supports SCSI-II tagged queuing */
197 	unsigned simple_tags:1;	/* simple queue tag messages are enabled */
198 	unsigned was_reset:1;	/* There was a bus reset on the bus for 
200 	unsigned expecting_cc_ua:1; /* Expecting a CHECK_CONDITION/UNIT_ATTN
202 	unsigned use_10_for_rw:1; /* first try 10-byte read / write */
203 	unsigned use_10_for_ms:1; /* first try 10-byte mode sense/select */
204 	unsigned set_dbd_for_ms:1; /* Set "DBD" field in mode sense */
205 	unsigned no_report_opcodes:1;	/* no REPORT SUPPORTED OPERATION CODES */
206 	unsigned no_write_same:1;	/* no WRITE SAME command */
207 	unsigned use_16_for_rw:1; /* Use read/write(16) over read/write(10) */
208 	unsigned use_16_for_sync:1;	/* Use sync (16) over sync (10) */
209 	unsigned skip_ms_page_8:1;	/* do not use MODE SENSE page 0x08 */
210 	unsigned skip_ms_page_3f:1;	/* do not use MODE SENSE page 0x3f */
211 	unsigned skip_vpd_pages:1;	/* do not read VPD pages */
212 	unsigned try_vpd_pages:1;	/* attempt to read VPD pages */
213 	unsigned use_192_bytes_for_3f:1; /* ask for 192 bytes from page 0x3f */
214 	unsigned no_start_on_add:1;	/* do not issue start on add */
215 	unsigned allow_restart:1; /* issue START_UNIT in error handler */
216 	unsigned no_start_on_resume:1; /* Do not issue START_STOP_UNIT on resume */
217 	unsigned start_stop_pwr_cond:1;	/* Set power cond. in START_STOP_UNIT */
218 	unsigned no_uld_attach:1; /* disable connecting to upper level drivers */
219 	unsigned select_no_atn:1;
220 	unsigned fix_capacity:1;	/* READ_CAPACITY is too high by 1 */
221 	unsigned guess_capacity:1;	/* READ_CAPACITY might be too high by 1 */
222 	unsigned retry_hwerror:1;	/* Retry HARDWARE_ERROR */
223 	unsigned last_sector_bug:1;	/* do not use multisector accesses on
225 	unsigned no_read_disc_info:1;	/* Avoid READ_DISC_INFO cmds */
226 	unsigned no_read_capacity_16:1; /* Avoid READ_CAPACITY_16 cmds */
227 	unsigned try_rc_10_first:1;	/* Try READ_CAPACACITY_10 first */
228 	unsigned security_supported:1;	/* Supports Security Protocols */
229 	unsigned is_visible:1;	/* is the device visible in sysfs */
230 	unsigned wce_default_on:1;	/* Cache is ON by default */
231 	unsigned no_dif:1;	/* T10 PI (DIF) should be disabled */
232 	unsigned broken_fua:1;		/* Don't set FUA bit */
233 	unsigned lun_in_cdb:1;		/* Store LUN bits in CDB[1] */
234 	unsigned unmap_limit_for_ws:1;	/* Use the UNMAP limit for WRITE SAME */
235 	unsigned rpm_autosuspend:1;	/* Enable runtime autosuspend at device
237 	unsigned ignore_media_change:1; /* Ignore MEDIA CHANGE on resume */
238 	unsigned silence_suspend:1;	/* Do not print runtime PM related messages */
239 	unsigned no_vpd_size:1;		/* No VPD size reported in header */
241 	unsigned cdl_supported:1;	/* Command duration limits supported */
242 	unsigned cdl_enable:1;		/* Enable/disable Command duration limits */
267 	struct scsi_device_handler *handler;  argument
279 	enum scsi_device_state sdev_state;  argument
285 	container_of(d, struct scsi_device, sdev_gendev)  argument